I was browsing around yesterday, and noticed an article Brandon Whichard linked.
Every company innovates until it finds a cash cow. At that point only innovation that supports the cash cow is promoted. Further, any innovation that threatens or does not support the cash cow languishes or is actively killed. Eventually, most of the true innovation ceases as the innovators leave and start new companies and the cycle repeats.
I'll add: Be afraid of the word "cannibalize" when applied to your project.